Liguria has a key resource in its sea for the quality of life and economy of the region. Between the east coast of Provence, Cap Corse, the Tuscan Archipelago, the Ligurian Sea has a high salinity and a considerable depth of up to ten thousand feet to the northwest of Corsica. Its waters are generally poor in nutrients (nitrates, nitrites, phosphates) that are the basis of the food chain of fish: this is partly due to the lack of large bodies of water and produces a low abundance of fish. The winds are north and northwest of help moving into the coastal waters off the surface and drawing it deeper waters of the rich nourishment to the growth of plankton. Fishing in Liguria has about 1800-2000 fishermen, mostly organized into cooperatives, most of which is concerned to sell the product directly. It 's a major economic sector, which relies on a good local demand for fish products.